diff --git a/kcms/touchpad/kcm/libinput/touchpad.qml b/kcms/touchpad/kcm/libinput/touchpad.qml
--- a/kcms/touchpad/kcm/libinput/touchpad.qml
+++ b/kcms/touchpad/kcm/libinput/touchpad.qml
@@ -242,7 +242,7 @@
             id: accelSpeed
 
             from: 1
-            to: 11
+            to: 41
             stepSize: 1
 
             function load() {
@@ -251,16 +251,16 @@
                     value = 0.1
                     return
                 }
-                // transform libinput's pointer acceleration range [-1, 1] to slider range [1, 11]
-                value = 6 + touchpad.pointerAcceleration / 0.2
+                // transform libinput's pointer acceleration range [-1, 1] to slider range [1, 41]
+                value = 21 + touchpad.pointerAcceleration / 0.05
             }
 
             onValueChanged: {
                 if (touchpad != undefined && enabled && !root.loading) {
-                    // transform slider range [1, 11] to libinput's pointer acceleration range [-1, 1]
-                    // by *10 and /10, we ignore the floating points after 1 digit. This prevents from
+                    // transform slider range [1, 41] to libinput's pointer acceleration range [-1, 1]
+                    // by *10 and /10, we ignore the floating points after 2 digit. This prevents from
                     // having a libinput value like 0.60000001
-                    touchpad.pointerAcceleration = Math.round(((value-6) * 0.2) * 10) / 10
+                    touchpad.pointerAcceleration = Math.round(((value-21) * 0.05) * 10) / 10
                     root.changeSignal()
                 }
             }